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JEE PYQ: Hydrogen Question 24

Question 24 - 2019 (09 Jan Shift 2)

The temporary hardness of water is due to:

(a) $\text{Na}_2\text{SO}_4$ (b) NaCl (c) $\text{Ca(HCO}_3)_2$ (d) $\text{CaCl}_2$

Show Answer

Answer: (c)

Solution

Only bicarbonates cause temporary hardness, whereas chlorides and sulphates cause permanent hardness.


Learning Progress: Step 24 of 31 in this series